WhatsApp's head, Will Cathcart, supports Apple in its legal battle with the UK government, citing the danger of setting a precedent that could embolden other nations to seek to break encryption.
The UK government issued a Technical Capability Notice (TCN) to Apple in February 2025, requesting a backdoor to access encrypted iCloud data worldwide, which raised privacy and security concerns.
US lawmakers requested the UK to retract its order, and US intelligence agencies are investigating the UK order.
Apple withdrew its Advanced Data Protection iCloud feature in the UK, which allows users to secure their data with end-to-end encryption.
Apple appealed the government's order, and the case was heard behind closed doors in March.
The Investigatory Powers Tribunal in April refused the government's request to keep the case details secret.
WhatsApp supports Apple and is willing to challenge any law or government request that weakens encryption.
The UK Home Office stated that its surveillance powers are only used for serious crimes and with necessary oversight.
Tech firms, including WhatsApp, have been vocal critics of the Investigatory Powers Act, warning against encryption backdoors.
In 2023, WhatsApp's Cathcart criticized the UK's Online Safety Act, stating that the company would not remove end-to-end encryption.
Rival messaging app Signal also expressed concerns about potential requirements to scan messages in the UK.